People are being evacuated from their homes following the discovery of a possible explosive substance in an area of Aberystwyth town centre.
Police and Ministry of Defence explosives experts are in the Loveden Road area with a cordon in place.
A 36-year-old man has been arrested on suspicion of possession of an explosive substance and currently remains in police custody.
Dyfed-Powys Police said officers were called at about 7.20pm on Wednesday evening (September 7) to a report of a number of loud bangs coming from the vicinity of a property in the Loveden Road area.
In a statement, the force said: "As a result of further enquiries and advice from MoD explosives experts, we have implemented a cordon, which will see local properties evacuated.
“We are working with other emergency services and the local authority to minimise the impact on the community and bring this incident to a close as safely and quickly as possible.
“The local authority has set up a reception centre at Plas Crug Leisure Centre to support anyone displaced by the incident.”
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here